package com.ssww.dao;

import java.util.List;

import com.ssww.entity.Contact;
/**
 * dao接口
 * @author 
 *
 */
public interface ContactDao {
	
	public Contact getContactById(Integer  id);
	public List<Contact> getContactList();
	public int addContact(Contact a);
	public int updateContact(Contact a,int id);
	public int deleteContact(int id);
}
